Siemens

SIEMENS 6FC3988-7FA20 9-inch CRT to LCD Upgrade | SINUMERIK CRT Monitor Replacement

Siemens 6FC3988-7FA20 9-inch monochrome CRT to 8-inch TFT-LCD upgrade. Compatible with SINUMERIK 810/820 systems. Factory direct, plug-and-play.

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$399 USD ✔️ In Stock — 2-Year Warranty

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Specifications

SpecOriginal CRTKongto LCD
Technology9-inch Monochrome CRT8-inch TFT-LCD Industrial Panel
Resolution640x400 / 640x480800x600
Brightness~200 cd/m²350-450 cd/m²
Lifespan~15,000 hrs50,000+ hrs
Power SupplyVia signal cableVia signal cable
InterfaceSiemens 2-row 16-pinSiemens 2-row 16-pin (direct compatible)
Signal TypeRGB analogTTL
SafetyHigh voltage (10-15kV)Low voltage DC
Weight3.5 kg

Compatible Systems

Frequently Asked Questions

Which CNC systems is this upgrade compatible with?
Siemens SINUMERIK 810D/840D, 810T/M, 820T/M, and 840C systems. Uses the same connector as your original CRT — plug-and-play drop-in, no parameter changes needed.
Installation time and difficulty?
10-15 minutes: power off, remove 4 screws, swap display, reconnect. No soldering.
Image quality vs original CRT?
800×600 resolution, 350-450 cd/m² brightness, 50,000+ hr lifespan. Sharper, no flicker.
Warranty and support?
2-Year Warranty, lifetime support, worldwide shipping.

Warranty & Service

2-Year Warranty — Lifetime Technical Support — Worldwide Shipping
Email: [email protected] | WhatsApp: +86-13686889647
No CNC parameter changes needed — plug and play, your machine programs and settings stay intact.
CRT failure symptoms & repair cost · Customer results · Quality testing process

Ready to replace your CRT?

$399 — In Stock — Ships within 24 hours